Home / 13,487.87-20,229.35-3,624.84

Finding the Fourth Proportional to 13,487.87, 20,229.35 and 3,624.84

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Solution

The fourth proportional to 13,487.87, 20,229.35 and 3,624.84 is: 5,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.87 : 20,229.35 = 3,624.84 : x
  2. Step 2: Convert to fraction form
    13,487.87/20,229.35 = 3,624.84/x
  3. Step 3: Cross multiply
    13,487.87x = 20,229.35 × 3,624.84
  4. Step 4: Simplify right side
    13,487.87x = 73,328,133.42
  5. Step 5: Solve for x
    x = 73,328,133.42/13,487.87
  6. Step 6: Final answer
    x = 5,436.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.